| Code | city | 23/02 | 24/02 | 25/02 | 26/02 | 27/02 | 28/02 | 29/02 | 01/03 | 02/03 | 03/03 | 04/03 | 05/03 | 06/03 | 07/03 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 41B011 | Sint-Agatha-Berchem | 7 | 7 | 7 | 8 | 15 | 19 | 9 | NA | 5 | NA | 16 | 14 | 14 | 30 | |
| 41MEU1 | Neder-Over-Heembeek | 8 | 6 | 6 | 8 | 15 | 21 | 10 | 8 | 6 | 15 | 19 | 16 | 18 | 40 | |
| 41N043 | Voorhaven (Haren) | 10 | 7 | 7 | 8 | 17 | 24 | NA | NA | 7 | 15 | 28 | 22 | 31 | 38 | |
| 41R001 | Sint-Jans-Molenbeek | 7 | 6 | 6 | 8 | 15 | 19 | 8 | 8 | 6 | 13 | 19 | 14 | 18 | NA | |
| 41R012 | Ukkel | 7 | 5 | 7 | 8 | 14 | 15 | 10 | 8 | 6 | 12 | 17 | 12 | 12 | 26 | |
| 41REG1 | Brussel (Regentlaan) | 7 | 5 | 5 | 7 | 17 | 18 | 8 | 6 | 5 | 15 | 25 | 13 | 15 | 34 | |
| 40AL02 | Doel (Engelsesteenweg) | 9 | 7 | 8 | 8 | 12 | 27 | 12 | 9 | 6 | 10 | 20 | 31 | 25 | 40 | |
| 40AL03 | Verrebroek | 8 | 7 | 7 | 7 | 13 | 22 | 10 | 6 | 6 | 10 | 19 | 20 | 22 | 42 | |
| 40AL04 | Kallo (Liefkenshoektunnel) | 8 | 6 | 7 | 7 | 13 | 25 | 12 | 9 | 8 | 12 | 27 | 20 | 23 | 39 | |
| 40AL05 | Kallo (sluis Kallo) | 7 | 7 | 7 | 11 | 15 | 20 | 10 | 7 | NA | 11 | 22 | 19 | 26 | 42 | |
| 40AT83 | Berendrecht | 6 | 7 | 8 | 7 | 10 | 21 | 11 | 7 | 6 | 11 | 18 | 17 | 22 | 36 | |
| 40EG05 | Evergem (Rieme) | 8 | 11 | 11 | 8 | 15 | 28 | 19 | 12 | 9 | 6 | 33 | 42 | 34 | 45 | |
| 40GK37 | Genk | NA | NA | NA | NA | NA | NA | 15 | 9 | 5 | 13 | 24 | 20 | 20 | 34 | |
| 40HB23 | Hoboken | 7 | 7 | 6 | 6 | 14 | 19 | 11 | 17 | 5 | 12 | 18 | 18 | 18 | 35 | |
| 40MN01 | Menen | 10 | 6 | 8 | 8 | 15 | 21 | 11 | 8 | 7 | 12 | 18 | 17 | 25 | 42 | |
| 40OB01 | Oostrozebeke | 14 | 12 | 13 | 9 | 19 | 26 | 11 | 10 | 9 | 12 | 23 | 23 | 34 | 49 | |
| 40SA04 | Hoevenen | 7 | 7 | 8 | 7 | 13 | 21 | 11 | 7 | 5 | 10 | 22 | 20 | 22 | 39 | |
| 40SZ05 | Steenokkerzeel | 6 | 5 | 5 | 7 | 16 | 18 | 10 | 6 | 5 | 13 | 20 | 14 | 15 | 35 | |
| 42AL09 | Antwerpen (Van Averbekelaan) | 7 | 10 | 8 | 7 | 15 | 19 | 10 | 7 | 6 | 11 | 19 | 18 | 21 | 42 | |
| 42AL10 | Antwerpen (Blancefloerlaan) | 8 | 7 | 7 | 7 | 18 | 24 | 16 | 10 | 5 | 12 | 26 | 21 | 26 | 43 | |
| 42DU07 | Antwerpen (Deurne) | 9 | 8 | 8 | 9 | 16 | 26 | 14 | 9 | 6 | 12 | 27 | 24 | 25 | 44 | |
| 42HH08 | Houthalen-Helchteren | NA | 5 | 5 | 9 | 29 | 21 | 15 | 8 | 6 | 10 | 18 | 22 | 24 | 39 | |
| 42M802 | Antwerpen (Luchtbal) | 8 | 8 | 8 | 8 | 13 | 25 | 13 | 9 | 7 | 12 | 31 | 27 | 27 | 44 | |
| 42MK02 | Antwerpen (Merksem) | 8 | 8 | 7 | 8 | 17 | 27 | 13 | 8 | 5 | 11 | 31 | 24 | 25 | 38 | |
| 42N016 | Dessel | 6 | 5 | 5 | 8 | 21 | 25 | 13 | 6 | 4 | 10 | 13 | 17 | 18 | 38 | |
| 42N035 | Aarschot | 5 | 5 | 5 | 8 | 21 | 20 | 11 | 9 | 4 | 10 | 17 | 16 | 19 | 39 | |
| 42N047 | Hasselt | 5 | 4 | 4 | 9 | 30 | 20 | 12 | 6 | 4 | 10 | 19 | 17 | 15 | 36 | |
| 42N054 | Walshoutem | 5 | 4 | 4 | 7 | 29 | 17 | 10 | 5 | 4 | 9 | 16 | 11 | 13 | 30 | |
| 42R020 | Vilvoorde | 13 | 8 | 7 | 8 | 18 | 29 | 12 | 8 | 6 | 16 | 28 | 24 | 28 | 43 | |
| 42R801 | Borgerhout | 8 | 7 | 7 | 8 | 15 | 23 | 12 | 8 | 6 | 11 | 23 | 23 | 23 | 42 | |
| 42R802 | Borgerhout (straatkant) | 8 | 8 | 8 | 8 | 15 | 25 | 12 | 8 | 6 | 12 | 26 | 26 | 23 | 44 | |
| 42R803 | Antwerpen (Park Spoor Noord) | 9 | 9 | 8 | 9 | 15 | 25 | 12 | 9 | 6 | 11 | 27 | 23 | 25 | 49 | |
| 42R804 | Borgerhout (Ring) | 7 | 7 | 7 | 8 | 16 | 20 | 11 | 7 | 5 | 11 | 25 | 21 | 23 | 39 | |
| 42R805 | Antwerpen (Belgiëlei) | 9 | 9 | 10 | 9 | 20 | 27 | 14 | 11 | 8 | 14 | 33 | 31 | 29 | 44 | |
| 42R817 | Antwerpen (Groenenborgerlaan) | 7 | 6 | 8 | 8 | 15 | 21 | 11 | 7 | 6 | 12 | 21 | 20 | 20 | 42 | |
| 42R818 | Antwerpen (Burchtse Weel) | 6 | 7 | 7 | 7 | 16 | 18 | 9 | 7 | 5 | 12 | 19 | 16 | 21 | 40 | |
| 42R823 | Beveren-Waas | 6 | 6 | 7 | 8 | 15 | 18 | 10 | 7 | 5 | 11 | 19 | 20 | 22 | 39 | |
| 42R834 | Boom | 6 | 5 | 5 | 6 | 13 | 18 | 9 | 6 | 5 | 13 | 18 | 17 | 17 | 36 | |
| 42R842 | Mechelen (Hendrik Speecqvest) | 7 | 5 | 6 | 7 | 17 | 20 | 9 | 6 | 6 | 13 | 22 | 20 | 22 | 39 | |
| 42ZD01 | Zwijndrecht (Binnenplein) | 8 | 8 | 8 | 7 | 15 | 20 | 12 | 8 | 6 | 13 | 21 | 21 | 24 | 44 | |
| 42ZD08 | Zwijndrecht (Neerstraat) | 7 | 7 | 8 | 8 | 15 | 22 | 11 | 8 | 6 | 13 | 29 | 17 | 25 | 54 | |
| 44M705 | Roeselare (Haven) | 7 | 6 | 9 | 8 | 17 | 17 | 10 | 8 | 8 | 11 | 21 | 28 | 40 | 55 | |
| 44N012 | Moerkerke | 6 | 6 | 9 | 7 | 11 | 16 | 10 | 6 | 6 | 8 | 17 | 18 | 22 | 38 | |
| 44N029 | Houtem (Veurne) | 4 | 4 | 8 | 8 | 9 | 8 | 7 | 6 | 6 | 9 | 13 | 13 | 17 | 39 | |
| 44N052 | Zwevegem | 6 | 5 | 7 | 7 | 16 | 19 | 9 | 6 | 7 | 11 | 15 | 14 | 23 | 41 | |
| 44R701 | Gent (Baudelopark) | 7 | 7 | 8 | 7 | 16 | 20 | 9 | 7 | 7 | 8 | 19 | 20 | 23 | 39 | |
| 44R702 | Gent (Gustaaf Callierlaan) | 7 | 6 | 8 | 6 | 14 | 18 | 8 | 7 | 7 | 6 | 19 | 18 | 22 | 39 | |
| 44R710 | Destelbergen | 7 | 7 | 8 | 8 | 15 | 19 | 9 | 7 | 7 | 10 | 17 | 27 | 22 | 39 | |
| 44R740 | Sint-Kruiswinkel | 7 | 6 | 7 | 7 | 14 | 24 | NA | NA | 6 | 8 | 25 | 26 | 28 | 45 | |
| 44R750 | Zelzate | 14 | 10 | 9 | 7 | 12 | 22 | 9 | 7 | 6 | 8 | 20 | 21 | 31 | 38 | |
| 44RL01 | Roeselare (Brugsesteenweg) | 7 | 6 | 9 | 8 | 17 | 15 | 10 | 7 | 8 | 10 | 17 | 21 | 31 | 47 | |
| 43H201 | Saint-Nicolas (Liège) | 1 | 1 | 1 | 9 | 41 | 25 | 9 | 2 | 0 | 8 | 20 | 11 | 16 | 32 | |
| 43M204 | Angleur | 3 | 1 | 0 | 10 | 41 | 22 | 10 | 3 | 1 | 8 | 21 | 14 | 15 | 32 | |
| 43N060 | Havinnes | 3 | 2 | 4 | 3 | 12 | 24 | 10 | 4 | 3 | 11 | 19 | 12 | 22 | 35 | |
| 43N064 | Rixensart | 2 | 2 | 2 | 5 | 22 | 20 | 9 | 3 | 2 | 8 | 23 | 12 | 16 | 32 | |
| 43N067 | Membach | 0 | 0 | 0 | 8 | 34 | 13 | 7 | 1 | 0 | 10 | 19 | 10 | 11 | 24 | |
| 43N070 | Mons | 3 | 3 | 4 | 5 | 18 | 25 | 8 | 3 | 4 | 7 | 30 | 13 | 19 | 35 | |
| 43N073 | Vezin | 1 | 0 | 0 | 8 | 30 | 15 | 9 | 2 | 1 | 8 | 15 | 7 | 10 | 30 | |
| 43N085 | Vielsalm | 0 | 0 | 0 | 4 | 22 | 12 | 10 | 2 | 0 | 8 | 12 | 7 | 4 | 21 | |
| 43N093 | Sinsin | 0 | 0 | 0 | 10 | 34 | 17 | 9 | 1 | 0 | 7 | 16 | 7 | 9 | 22 | |
| 43N100 | Dourbes | 0 | 0 | 0 | 6 | 25 | 13 | 7 | 1 | 0 | 3 | 8 | 4 | 3 | 18 | |
| 43N113 | Saint-Ode | 0 | 0 | 0 | 1 | 17 | 8 | 7 | 0 | 0 | 2 | 8 | 4 | 2 | 17 | |
| 43N121 | Offagne | 0 | 0 | 0 | 3 | 23 | 14 | 9 | 0 | 0 | 4 | 10 | 7 | 4 | 21 | |
| 43N132 | Habay-La-Neuve | 0 | 0 | 0 | 2 | 19 | 13 | 13 | 2 | 1 | 6 | 12 | 9 | 6 | 23 | |
| 43R202 | Liège (Av M Destenay) | 5 | 3 | 2 | 9 | 42 | 32 | 18 | 8 | 5 | 13 | 26 | 18 | 26 | 40 | |
| 43R221 | Herstal | 2 | 0 | 0 | 8 | 38 | 25 | 14 | 5 | 1 | 8 | 27 | 15 | 19 | 41 | |
| 43R222 | Liège (ISSeP) | 2 | 1 | 1 | 9 | 41 | 27 | 12 | 4 | 2 | 8 | 26 | 15 | 19 | 34 | |
| 43R223 | Jemeppe-sur-Meuse | 2 | 0 | 0 | 10 | 40 | 26 | 12 | 4 | 2 | 9 | 29 | 18 | 23 | 39 | |
| 43R240 | Engis | 5 | 5 | 1 | 6 | 31 | 25 | 17 | 7 | 4 | 7 | 17 | 20 | 23 | 30 | |
| 43R401 | Namur | 2 | 2 | 1 | 6 | 31 | 16 | 8 | 2 | 2 | 6 | 15 | 8 | 11 | 30 | |
| 45R501 | Charleroi | 2 | 1 | 2 | 6 | 29 | 19 | 7 | 2 | 1 | 7 | 25 | 9 | 13 | 34 | |
| 45R502 | Lodelinsart | 2 | 1 | 1 | 5 | 32 | 23 | 8 | 3 | 1 | 6 | 24 | 10 | 14 | 31 | |
| 45R503 | Charleroi - Parc | 3 | 2 | 2 | 6 | 31 | 21 | 9 | 4 | 2 | 9 | 28 | 11 | 12 | 34 | |
| 45R510 | Chatelineau | 2 | 1 | 2 | 4 | 30 | 17 | 6 | 2 | 2 | 6 | 23 | 9 | 11 | 32 | |
| 45R511 | Marcinelle | 2 | 1 | 1 | 6 | 29 | 16 | 7 | 2 | 1 | 6 | 16 | 6 | 9 | 35 | |
| 45R512 | Marchienne-Au-Pont | 3 | 2 | 2 | 5 | 32 | 21 | 7 | 3 | 1 | 7 | 25 | 22 | 19 | 39 | |
| 48R215 | Hermalle | 1 | 0 | 1 | 8 | 36 | 28 | 11 | 3 | 1 | 9 | NA | NA | NA | NA | |
| 48R237 | Liège (Aéroport 1) | 0 | 0 | 0 | 7 | 32 | 18 | 9 | 1 | 0 | 7 | 19 | 11 | 13 | 34 | |
| 48R515 | Charleroi (Aeroport 1) | 3 | 3 | 2 | 6 | 29 | 24 | 11 | 4 | 2 | 8 | 23 | 10 | 13 | 37 | |
| 48R516 | Charleroi (Aeroport 2) | 1 | 1 | 1 | 5 | 26 | 19 | 7 | 2 | 1 | 6 | 17 | 9 | 10 | 28 | |
| Spatial average monitoring sites in : | ||||||||||||||||
| Brussels | 8 | 6 | 6 | 8 | 16 | 19 | 9 | 8 | 6 | 14 | 21 | 15 | 18 | 34 | ||
| Flanders | 8 | 7 | 7 | 8 | 16 | 21 | 11 | 8 | 6 | 11 | 22 | 21 | 24 | 41 | ||
| Wallonia | 2 | 1 | 1 | 6 | 30 | 20 | 10 | 3 | 1 | 7 | 20 | 11 | 13 | 31 | ||
| Belgium | 5 | 5 | 5 | 7 | 21 | 21 | 11 | 6 | 4 | 10 | 21 | 17 | 19 | 37 | ||
| Interpolated spatial average in : | ||||||||||||||||
| Brussels | 6 | 5 | 5 | 7 | 16 | 18 | 9 | 6 | 5 | 11 | 18 | 14 | 16 | NA | ||
| Flanders | 7 | 6 | 7 | 8 | 19 | 20 | 11 | 7 | 6 | 10 | 19 | 18 | 21 | NA | ||
| Wallonia | 1 | 1 | 1 | 4 | 21 | 13 | 7 | 2 | 1 | 5 | 13 | 8 | 8 | NA | ||
| Belgium | 4 | 4 | 4 | 6 | 20 | 16 | 9 | 4 | 3 | 7 | 16 | 12 | 14 | NA | ||
These data are not validated : they should not be used for any study whatsoever
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